SMR Instrumentation Patent Snapshot 2026
The SMR instrumentation patent corpus is extremely small, with only 4 patent families in scope and a single applicant—Advanced Reactor Concepts LLC—holding the dominant position. Activity appears to have been concentrated in 2017, with no recorded filings in subsequent years through 2026, though the recency of the corpus limits firm conclusions.
Advanced Reactor Concepts LLC dominates a nascent, highly concentrated field
Advanced Reactor Concepts LLC leads the SMR instrumentation evidence snapshot with 3 patent families, representing the clear majority of a corpus totalling only 4 patent families. The Commissariat a l’Energie Atomique et aux Energies Alternatives (CEA) holds 1 patent family, rounding out a two-player ranked field.
The top five filers collectively account for 100% of the ranked applicants visible in this query’ combined total—an extreme concentration that reflects the nascent, pre-commercial character of this specific instrumentation niche. There is effectively no mid-tier of competing applicants.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Advanced Reactor Concepts LLC | 3 | |
| 2 | Commissariat a l’Energie Atomique et aux Energies Alternatives (CEA) | 1 |
Advanced Reactor Concepts LLC’s visible position implies that any entrant into SMR instrumentation will be working largely outside an established thicket, but will also find very limited prior art to build upon or design around. CEA’s single family signals early-stage European institutional interest.
Filing data for the most recent 18–24 months is subject to publication lag, so the apparent absence of filings after 2017 may partially reflect incomplete publication rather than a definitive halt in activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single-year burst in 2017 with no recorded follow-on activity
The filing trend and technology composition together reveal a corpus defined by a concentrated 2017 origin event and a narrow IPC footprint spanning nuclear reactor and nuclear power plant classes.
Annual filing trend
All 4 patent families trace to 2017, with zero recorded filings in every subsequent year through 2026. Given standard publication lags of 18–24 months, any filings from 2024–2026 may not yet be visible; the absence in earlier years (2018–2023) is more informative.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The IPC mix is narrow: G21C (Nuclear reactors) accounts for 5 records and G21D (Nuclear power plants) for 4 records. This dual-class concentration confirms the corpus sits at the reactor-system level rather than in sensor-specific or control-system IPC classes.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
SLIMM-Scalable Liquid Metal Cooled Small Modular R…
The present invention provides a modular nuclear reactor system comprising a reactor pressure vessel having a lower section having a first wall and a second wall and an upper section having a first wall and a second wall. The reactor includes a chimney with an attached heat exchanger. First and second passageways create a circulation loop wherein heated… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | SLIMM-Scalable Liquid Metal Cooled Small Modular R… | 24 |
| 2 | Small modular reactor power plant with load follow… | 13 |
| 3 | Small modular reactor power plant with load follow… | 8 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the competitive structure implies for R&D strategy
Four key structural observations shape how an engineer or strategist should interpret this landscape and calibrate follow-up research decisions.
Life-cycle stage undetermined; corpus is too small for standard classification
The evidence does not support a definitive life-cycle stage assignment for this topic. The 4-family corpus and single-year filing pattern are consistent with a very early or dormant niche. Any new entrant would be operating with limited prior art as reference and should not assume the field is actively contested.
Stage: evidence pendingExtreme concentration: two applicants cover the entire ranked field
With the top five filers accounting for 100% of the ranked applicants visible in this query’ combined total and only two distinct applicants present, this is one of the most concentrated technology niches observable. This reduces freedom-to-operate risk from incumbent portfolios but also signals that the market for SMR instrumentation IP has not yet attracted broad industry participation.
HHI: extremeNo co-applicant relationships recorded in this corpus
Evidence shows no co-filing or collaboration relationships among the applicants in scope. This absence may reflect the early-stage nature of the field, where individual organizations are staking initial positions independently rather than forming consortia. Collaborative filings, if they emerge, would be an early indicator of commercialization momentum.
Collaboration: none on recordUnited States and WIPO (PCT) are the primary filing jurisdictions
The United States leads with 2 records, matched by WIPO (PCT) with 2 records, and Canada holds 1 record. The PCT filings signal intent to preserve international filing options beyond the US, while Canada’s presence is consistent with its active SMR deployment pipeline. European and Asian jurisdictions are absent from this corpus.
Lead office: US & PCTGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Advanced Reactor Concepts LLC
Advanced Reactor Concepts LLC holds 3 patent families, giving it a commanding position in this small corpus. Its technology emphasis spans G21D 1 and G21D 3 (nuclear power plants) and G21C 15 (nuclear reactors—cooling), reflecting a system-integration focus. Momentum data is not available for this applicant in the evidence.
families: 3CEA (Commissariat a l’Energie Atomique)
CEA holds 1 patent family, with technology emphasis across G21C 1 (reactor types), G21C 17 (monitoring/measuring), and G21C 7 (reactor control), suggesting a broader instrumentation and control angle than the leader. As a major European public research institution, CEA’s presence signals institutional rather than commercial-stage activity. Momentum data is not available in the evidence.
families: 1Frequently asked questions
The evidence captures 4 patent families in scope for this topic. This is a very small corpus, consistent with a nascent or highly specialized niche within the broader SMR technology area.
Advanced Reactor Concepts LLC leads with 3 patent families. The only other ranked applicant is the Commissariat a l’Energie Atomique et aux Energies Alternatives (CEA) with 1 patent family.
All 4 patent families in the evidence trace to 2017. No filings are recorded in subsequent years through 2026 in the current corpus, though publication lag means very recent filings may not yet be visible.
The United States and WIPO (PCT) each have 2 records, and Canada has 1 record. No European or Asian jurisdictions appear in the evidence for this specific corpus.
G21C (Nuclear reactors) accounts for 5 records and G21D (Nuclear power plants) accounts for 4 records. Instrument-specific subclasses such as G21C 17 (monitoring) and G21C 7 (control) are touched only by CEA’s single family.
No co-applicant or collaboration relationships are recorded in the evidence for this corpus. Both identified applicants appear to have filed independently.
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Disclaimer. This page is generated from PatSnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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